NPE spring-boot project via a jar
by rogerL
Hi,
Running into NPE on application boot up. It appears to be related to a
previous topic. I didn't add to it as the last entry appears to veer off
topic and didn't want it lost in the wash.
http://drools.46999.n3.nabble.com/rules-users-NullPointerException-with-k...
Using kie-spring-6.1.0.Beta4.jar, spring 4. As per the former topic, the
application starts up without issue in IDE env, etc. but fails on jar boot
up.
The stack is as follows:
Exception in thread "main"
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'kiePostProcessor' defined in class path resource
[qres/callManager.xml]: Instantiation of bean failed; nested exception is
org.springframework.beans.BeanInstantiationException: Could not instantiate
bean class [org.kie.spring.KModuleBeanFactoryPostProcessor]: Constructor
threw exception; nested exception is java.lang.NullPointerException
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1076)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1021)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1121)
at
org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:682)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:461)
at com.s.c.util.ConfigUtility.loadProfileContext(ConfigUtility.java:42)
at com.s.c.manager.CallManager.init(CallManager.java:19)
at com.s.c.manager.CallManager.main(CallManager.java:46)
Caused by: org.springframework.beans.BeanInstantiationException: Could not
instantiate bean class [org.kie.spring.KModuleBeanFactoryPostProcessor]:
Constructor threw exception; nested exception is
java.lang.NullPointerException
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1069)
... 13 more
Caused by: java.lang.NullPointerException
at
org.kie.spring.KModuleBeanFactoryPostProcessor.initConfigFilePath(KModuleBeanFactoryPostProcessor.java:83)
at
org.kie.spring.KModuleBeanFactoryPostProcessor.<init>(KModuleBeanFactoryPostProcessor.java:68)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
... 15 more
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11 years, 6 months
Re: [rules-users] Fuse ESB & Drools 6 - Fire-until-halt configuration using persistence
by Sergio Besada
Maybe I'm wrong and I cannot use this configuration because in some case
fail
2014-06-17 13:57 GMT+02:00 Sergio Besada <scerquido(a)gmail.com>:
> Hi,
>
> I have seen that in the drools version 6.1.0.Beta4, the command
> fire-until-halt is developed using persistence but drools doesn't let me
> test it because this command implement the interface
> "UnpersistableCommand" so I have eliminated this interface and I have
> tested this configuration.
>
> Surprisingly, Drools works as I expected and doesn't throw any exception,
> ¿Where is the problem in this configuration?
>
> Here my camel context
>
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="http://www.springframework.org/schema/beans"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:kie="http://drools.org/schema/kie-spring"
> xsi:schemaLocation="
> http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
> http://drools.org/schema/kie-spring
> http://drools.org/schema/kie-spring.xsd
> http://camel.apache.org/schema/spring
> http://camel.apache.org/schema/spring/camel-spring.xsd">
>
>
>
> <kie:kmodule id="kModule">
> <kie:kbase name="rules" packages="rules">
> <kie:ksession name="ksession1" type="stateful">
> <kie:batch>
> <kie:fire-until-halt/>
> </kie:batch>
> <kie:configuration>
> <kie:jpa-persistence>
> <kie:transaction-manager ref="txManager"/>
> <kie:entity-manager-factory ref="myEmf"/>
> </kie:jpa-persistence>
> </kie:configuration>
>
>
> </kie:ksession>
> </kie:kbase>
> </kie:kmodule>
>
> <kie:environment id="env">
> <kie:entity-manager-factory ref="myEmf"/>
> <kie:transaction-manager ref="txManager"/>
> </kie:environment>
>
>
> <bean class="org.postgresql.ds.PGPoolingDataSource" id="jbpm-ds">
> <property name="serverName" value="localhost"></property>
> <property name="databaseName" value="drools"></property>
> <property name="portNumber" value="5432"></property>
> <property name="user" value="DWP"></property>
> <property name="password" value="DWP"></property>
> </bean>
>
>
> <bean id="myEmf"
> class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
> <property name="dataSource" ref="jbpm-ds"/>
> <property name="persistenceUnitName"
> value="org.jbpm.persistence.jpa.local"/>
> </bean>
>
> <bean id="txManager"
> class="org.springframework.orm.jpa.JpaTransactionManager">
> <property name="entityManagerFactory" ref="myEmf"/>
> </bean>
>
> <bean id="kiePostProcessor"
> class="org.drools.osgi.spring.OsgiKModuleBeanFactoryPostProcessor"/>
>
> <bean id="fireALlRulesCommand"
> class="com.execute.command.FireAllRules"/>
>
> <bean id="fireUntilHaltCommand"
> class="com.execute.command.FireUntilHalt"/>
>
> <bean id="factStudent" class="com.test.facts.Student"/>
>
> <camelContext xmlns="http://camel.apache.org/schema/spring">
> <route trace="false" id="testRoute">
> <from uri="timer:testRoute?period=10s"/>
> <to uri="log:message"/>
> <bean method="initStudent" ref="factStudent"/>
> <to uri="kie:ksession1?action=insertBody" id="AgeVerification"/>
> <!--
> <bean method="fireUntilHalt" ref="fireUntilHaltCommand"/>
>
> <to uri="kie:ksession1?action=execute"/>
> -->
> </route>
> </camelContext>
>
> </beans>
>
>
> PD: I have attached my example , it's a maven project
>
>
>
>
> 2014-06-04 19:04 GMT+02:00 Sergio Besada <scerquido(a)gmail.com>:
>
>> Thank you in advance.
>>
>>
>> 2014-06-04 18:29 GMT+02:00 Charles Moulliard <ch007m(a)gmail.com>:
>>
>>> I will have a look to your use case as it is not yet covered and will
>>> perhaps require that we modify the kie-camel component
>>>
>>>
>>> On Wed, Jun 4, 2014 at 6:02 PM, s b <scerquido(a)gmail.com> wrote:
>>>
>>>> I'm testing the drools new version (6.1.0.Beta4) but I have a problem
>>>> with the Stateful Drools Session.
>>>>
>>>> I have deployed in JBoss Fuse ESB the last versión of the drools
>>>> (drools camel, jbpm, spring, etc), I have atached my camel context bundle
>>>> (It's a maven project).
>>>>
>>>> This is my camel-context
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <beans xmlns="http://www.springframework.org/schema/beans"
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>> xmlns:kie="http://drools.org/schema/kie-spring"
>>>> xsi:schemaLocation="
>>>> http://www.springframework.org/schema/beans
>>>> http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
>>>> http://drools.org/schema/kie-spring
>>>> http://drools.org/schema/kie-spring.xsd
>>>> http://camel.apache.org/schema/spring
>>>> http://camel.apache.org/schema/spring/camel-spring.xsd">
>>>>
>>>>
>>>>
>>>> <kie:kmodule id="kModule">
>>>> <kie:kbase name="rules" packages="rules">
>>>> <kie:ksession name="ksession1" type="stateful">
>>>> <!--<kie:batch>
>>>> <kie:fire-all-rules/>
>>>> </kie:batch> -->
>>>> <kie:configuration>
>>>> <kie:jpa-persistence>
>>>> <kie:transaction-manager ref="txManager"/>
>>>> <kie:entity-manager-factory ref="myEmf"/>
>>>> </kie:jpa-persistence>
>>>> </kie:configuration>
>>>>
>>>>
>>>> </kie:ksession>
>>>> </kie:kbase>
>>>> </kie:kmodule>
>>>>
>>>> <kie:environment id="env">
>>>> <kie:entity-manager-factory ref="myEmf"/>
>>>> <kie:transaction-manager ref="txManager"/>
>>>> </kie:environment>
>>>>
>>>>
>>>> <bean class="org.postgresql.ds.PGPoolingDataSource" id="jbpm-ds">
>>>> <property name="serverName" value="localhost"></property>
>>>> <property name="databaseName" value="drools"></property>
>>>> <property name="portNumber" value="5432"></property>
>>>> <property name="user" value="DWP"></property>
>>>> <property name="password" value="DWP"></property>
>>>> </bean>
>>>>
>>>>
>>>> <bean id="myEmf"
>>>> class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
>>>> <property name="dataSource" ref="jbpm-ds"/>
>>>> <property name="persistenceUnitName"
>>>> value="org.jbpm.persistence.jpa.local"/>
>>>> </bean>
>>>>
>>>> <bean id="txManager"
>>>> class="org.springframework.orm.jpa.JpaTransactionManager">
>>>> <property name="entityManagerFactory" ref="myEmf"/>
>>>> </bean>
>>>>
>>>> <bean id="kiePostProcessor"
>>>> class="org.drools.osgi.spring.OsgiKModuleBeanFactoryPostProcessor"/>
>>>>
>>>> <bean id="fireALlRulesCommand"
>>>> class="com.execute.command.FireAllRules"/>
>>>>
>>>> <camelContext xmlns="http://camel.apache.org/schema/spring">
>>>> <route trace="false" id="testRoute">
>>>> <from uri="timer:testRoute?period=10s"/>
>>>> <to uri="log:message"/>
>>>> <to uri="kie:ksession1?action=insertBody"
>>>> id="AgeVerification"/>
>>>>
>>>> <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>>>> <to uri="kie:ksession1?action=execute"/>
>>>>
>>>> </route>
>>>> </camelContext>
>>>>
>>>> </beans>
>>>>
>>>> As you can see it is an scenario where Drools is in an stateful session
>>>> with persistence configured.
>>>>
>>>> The bundle is executed without errors but I want that Drools executes
>>>> my rules each time that the route is executed ( fireUntilHalt mode but I
>>>> wasn't able as seems that this command is not availble in a persisted
>>>> environment ), for this reason I've created a bean with the command:
>>>> fireAllRules and I use <to uri="kie:ksession1?action=execute"/> to execute
>>>> the rules but the problem is that the rules are only executed the first
>>>> time, only the first time and never in subsequents executions of the route.
>>>>
>>>> The persistece seems to work well ( I can see the datamodel created
>>>> and populated as expeted in the DB ).
>>>>
>>>> However if I change to use stateless mode ( no persistence then ), the
>>>> rules are executed each time that route is executed ( as expected ), and
>>>> therefore I don´t need the command fireAllRules
>>>> <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>>>> <to uri="kie:ksession1?action=execute"/>
>>>>
>>>>
>>>>
>>>> Questions:
>>>>
>>>> Is it possible to have a stateful fireUntilHalt drools session that
>>>> keeps using the same knowledge session in subsequent camel route executions?
>>>>
>>>> If it is not possible, Can I have a stateful ( persisted )drools
>>>> session and invoke "fireAllRules" whenever I make changes in the knowledge
>>>> session ( new Facts are inserted )?
>>>>
>>>> I've deep dived into the web looking for examples or documentation of
>>>> this scenario both in Spring and Blueprint. Does anyone of you have any
>>>> pointers to documentation on the matter?
>>>>
>>>> Kind Regards,
>>>>
>>>> _______________________________________________
>>>> rules-users mailing list
>>>> rules-users(a)lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>
>>>
>>>
>>>
>>> --
>>> Charles Moulliard
>>> Apache Committer / Architect @RedHat
>>> Twitter : @cmoulliard | Blog : http://cmoulliard.github.io
>>>
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users(a)lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>
>>
>
11 years, 6 months
Fuse ESB & Drools 6 - Fire-until-halt configuration using persistence
by Sergio Besada
Hi,
I have seen that in the drools version 6.1.0.Beta4, the command
fire-until-halt is developed using persistence but drools doesn't let me
test it because this command implement the interface
"UnpersistableCommand" so I have eliminated this interface and I have
tested this configuration.
Surprisingly, Drools works as I expected and doesn't throw any exception,
¿Where is the problem in this configuration?
Here my camel context
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:kie="http://drools.org/schema/kie-spring"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://drools.org/schema/kie-spring
http://drools.org/schema/kie-spring.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd">
<kie:kmodule id="kModule">
<kie:kbase name="rules" packages="rules">
<kie:ksession name="ksession1" type="stateful">
<kie:batch>
<kie:fire-until-halt/>
</kie:batch>
<kie:configuration>
<kie:jpa-persistence>
<kie:transaction-manager ref="txManager"/>
<kie:entity-manager-factory ref="myEmf"/>
</kie:jpa-persistence>
</kie:configuration>
</kie:ksession>
</kie:kbase>
</kie:kmodule>
<kie:environment id="env">
<kie:entity-manager-factory ref="myEmf"/>
<kie:transaction-manager ref="txManager"/>
</kie:environment>
<bean class="org.postgresql.ds.PGPoolingDataSource" id="jbpm-ds">
<property name="serverName" value="localhost"></property>
<property name="databaseName" value="drools"></property>
<property name="portNumber" value="5432"></property>
<property name="user" value="DWP"></property>
<property name="password" value="DWP"></property>
</bean>
<bean id="myEmf"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="jbpm-ds"/>
<property name="persistenceUnitName"
value="org.jbpm.persistence.jpa.local"/>
</bean>
<bean id="txManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="myEmf"/>
</bean>
<bean id="kiePostProcessor"
class="org.drools.osgi.spring.OsgiKModuleBeanFactoryPostProcessor"/>
<bean id="fireALlRulesCommand"
class="com.execute.command.FireAllRules"/>
<bean id="fireUntilHaltCommand"
class="com.execute.command.FireUntilHalt"/>
<bean id="factStudent" class="com.test.facts.Student"/>
<camelContext xmlns="http://camel.apache.org/schema/spring">
<route trace="false" id="testRoute">
<from uri="timer:testRoute?period=10s"/>
<to uri="log:message"/>
<bean method="initStudent" ref="factStudent"/>
<to uri="kie:ksession1?action=insertBody" id="AgeVerification"/>
<!--
<bean method="fireUntilHalt" ref="fireUntilHaltCommand"/>
<to uri="kie:ksession1?action=execute"/>
-->
</route>
</camelContext>
</beans>
PD: I have attached my example , it's a maven project
2014-06-04 19:04 GMT+02:00 Sergio Besada <scerquido(a)gmail.com>:
> Thank you in advance.
>
>
> 2014-06-04 18:29 GMT+02:00 Charles Moulliard <ch007m(a)gmail.com>:
>
>> I will have a look to your use case as it is not yet covered and will
>> perhaps require that we modify the kie-camel component
>>
>>
>> On Wed, Jun 4, 2014 at 6:02 PM, s b <scerquido(a)gmail.com> wrote:
>>
>>> I'm testing the drools new version (6.1.0.Beta4) but I have a problem
>>> with the Stateful Drools Session.
>>>
>>> I have deployed in JBoss Fuse ESB the last versión of the drools (drools
>>> camel, jbpm, spring, etc), I have atached my camel context bundle (It's a
>>> maven project).
>>>
>>> This is my camel-context
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <beans xmlns="http://www.springframework.org/schema/beans"
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>> xmlns:kie="http://drools.org/schema/kie-spring"
>>> xsi:schemaLocation="
>>> http://www.springframework.org/schema/beans
>>> http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
>>> http://drools.org/schema/kie-spring
>>> http://drools.org/schema/kie-spring.xsd
>>> http://camel.apache.org/schema/spring
>>> http://camel.apache.org/schema/spring/camel-spring.xsd">
>>>
>>>
>>>
>>> <kie:kmodule id="kModule">
>>> <kie:kbase name="rules" packages="rules">
>>> <kie:ksession name="ksession1" type="stateful">
>>> <!--<kie:batch>
>>> <kie:fire-all-rules/>
>>> </kie:batch> -->
>>> <kie:configuration>
>>> <kie:jpa-persistence>
>>> <kie:transaction-manager ref="txManager"/>
>>> <kie:entity-manager-factory ref="myEmf"/>
>>> </kie:jpa-persistence>
>>> </kie:configuration>
>>>
>>>
>>> </kie:ksession>
>>> </kie:kbase>
>>> </kie:kmodule>
>>>
>>> <kie:environment id="env">
>>> <kie:entity-manager-factory ref="myEmf"/>
>>> <kie:transaction-manager ref="txManager"/>
>>> </kie:environment>
>>>
>>>
>>> <bean class="org.postgresql.ds.PGPoolingDataSource" id="jbpm-ds">
>>> <property name="serverName" value="localhost"></property>
>>> <property name="databaseName" value="drools"></property>
>>> <property name="portNumber" value="5432"></property>
>>> <property name="user" value="DWP"></property>
>>> <property name="password" value="DWP"></property>
>>> </bean>
>>>
>>>
>>> <bean id="myEmf"
>>> class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
>>> <property name="dataSource" ref="jbpm-ds"/>
>>> <property name="persistenceUnitName"
>>> value="org.jbpm.persistence.jpa.local"/>
>>> </bean>
>>>
>>> <bean id="txManager"
>>> class="org.springframework.orm.jpa.JpaTransactionManager">
>>> <property name="entityManagerFactory" ref="myEmf"/>
>>> </bean>
>>>
>>> <bean id="kiePostProcessor"
>>> class="org.drools.osgi.spring.OsgiKModuleBeanFactoryPostProcessor"/>
>>>
>>> <bean id="fireALlRulesCommand"
>>> class="com.execute.command.FireAllRules"/>
>>>
>>> <camelContext xmlns="http://camel.apache.org/schema/spring">
>>> <route trace="false" id="testRoute">
>>> <from uri="timer:testRoute?period=10s"/>
>>> <to uri="log:message"/>
>>> <to uri="kie:ksession1?action=insertBody" id="AgeVerification"/>
>>>
>>> <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>>> <to uri="kie:ksession1?action=execute"/>
>>>
>>> </route>
>>> </camelContext>
>>>
>>> </beans>
>>>
>>> As you can see it is an scenario where Drools is in an stateful session
>>> with persistence configured.
>>>
>>> The bundle is executed without errors but I want that Drools executes my
>>> rules each time that the route is executed ( fireUntilHalt mode but I
>>> wasn't able as seems that this command is not availble in a persisted
>>> environment ), for this reason I've created a bean with the command:
>>> fireAllRules and I use <to uri="kie:ksession1?action=execute"/> to execute
>>> the rules but the problem is that the rules are only executed the first
>>> time, only the first time and never in subsequents executions of the route.
>>>
>>> The persistece seems to work well ( I can see the datamodel created
>>> and populated as expeted in the DB ).
>>>
>>> However if I change to use stateless mode ( no persistence then ), the
>>> rules are executed each time that route is executed ( as expected ), and
>>> therefore I don´t need the command fireAllRules
>>> <bean method="fireAllRules" ref="fireALlRulesCommand"/>
>>> <to uri="kie:ksession1?action=execute"/>
>>>
>>>
>>>
>>> Questions:
>>>
>>> Is it possible to have a stateful fireUntilHalt drools session that
>>> keeps using the same knowledge session in subsequent camel route executions?
>>>
>>> If it is not possible, Can I have a stateful ( persisted )drools session
>>> and invoke "fireAllRules" whenever I make changes in the knowledge session
>>> ( new Facts are inserted )?
>>>
>>> I've deep dived into the web looking for examples or documentation of
>>> this scenario both in Spring and Blueprint. Does anyone of you have any
>>> pointers to documentation on the matter?
>>>
>>> Kind Regards,
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users(a)lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>
>>
>>
>> --
>> Charles Moulliard
>> Apache Committer / Architect @RedHat
>> Twitter : @cmoulliard | Blog : http://cmoulliard.github.io
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>
>
11 years, 6 months
Fusion, Insert Events with timestamp in the past.
by SebastianStehle
Hi,
I am working on an existing drools project. We have a lot of rules with
"after" or "not after" relationships.
One of the problems I run into is when updating the rules. At the moment a
new session will be created and all facts are inserted from the old to the
new session. But something does not work in the scenario. To reproduce the
problem I made a simple test with the following rule:
rule "not after"
when
$message : DroolsSimulationMessage(value == 1) not
(DroolsSimulationMessage(value == 2, this after [1s, 10s] $message))
then
end
I inserted an event with a timestamp 5 seconds in the past and I expect the
rule to be activated 5 seconds after the event was inserted. But in my
scenario it does not work, the rule is activated after 10 seconds. This is a
very important point to make the current update progress work. Should it
work and if not is there a better way to realize rule-updates?
Thanks you in advance,
Sebastian
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11 years, 6 months
Workbench and GIT Repo High Availability
by Zahid Ahmed
Hi,
We are in a process of setting up a centralized drools6 Workbench in our organization. This way we can keep our assets and artefacts in a central location. We will make this central Workbench clustered for high availability. I have a few queries in regard to clustering the Workbench.
Problem Statement
As workbench is using GIT, this means we need to have an enterprise level GIT repository where all the assets get stored for Workbench. As GIT is file-system based , it in turn, calls for a clustered GIT server within the organization. Our organization will prefer to have a private GIT repository hosted within office network which is highly available and wants to avoid any cost for GIT repository setup.
1. I want to know how to make Workbench highly available , with GIT also Highly available. Is chapter# 18 VFS CLUSTERING is the answer to high available GIT and WORKBENCH both ? or is there any other way to make GIT repository highly available.
2. Will ZooKeeper and Helix be enough to make the clustered environment for both Workbench with its GIT repo ?
Regards,
Zahid Ahmed
11 years, 6 months
Error while importing repository from Guvnor 5.1.1 to 5.3.3.Final
by LaKhI ReDdY!!!!!!!!!!!
Hi,
I am trying to import the whole repository from 5.1.1 to 5.3.3.Final
version.I am getting the below attached error while importing.Please find
the attached file for error details.
We have added new functionality(Rule request) in 5.1.1 and using it for
quite some. Now we want to migrate to 5.3.3.Final and we want to drop the
additional functionality(Rule Request) which we have added earlier in 5.1.1
version.
The repository which we have currently contains the Rule request details
also, does this causes problem in importing to Guvnor 5.3.3.Final?
Regards,
Lakshmi Reddy
11 years, 6 months
Erratic behaviour of Drools
by Poissy.B
Hello,
I am a little bit confused as I don't get what I am doing wrong. Here is my
rule:
**************************
rule "Exchange Pattern"
when
$p2: ProcessAdapter()
$mainProcess: ProcessAdapter( isMainProcess(), this!=$p2)
MessageFlowAdapter ( fromProcess == $mainProcess, toProcess==$p2)
MessageFlowAdapter ( fromProcess == $p2, toProcess==$mainProcess)
exists ItemAwareElementAdapter( ) from
$mainProcess.getReceivedResources($p2)
exists ItemAwareElementAdapter( ) from
$mainProcess.getGivenResources($p2)
then
System.out.println("** FOUND EXCHANGE PATTERN betwwen
"+$mainProcess.getParticipant().getName()+" AND
"+$p2.getParticipant().getName());
System.out.println("Given:
"+$mainProcess.getGivenResources($p2)+$mainProcess.getGivenResources($p2).size());
System.out.println("Received:
"+$mainProcess.getReceivedResources($p2)+$mainProcess.getReceivedResources($p2).size());
System.out.println("Intersection:
"+$mainProcess.intersectGivenAndReceivedResourcesWithProcess($p2)+$mainProcess.intersectGivenAndReceivedResourcesWithProcess($p2).size());
end
**************************
This rule is never fired, although I know it should.
When I comment out the ONE OF the two "exists" constraints, I get this
output:
**************************
** FOUND EXCHANGE PATTERN betwwen Amazon AND Ship.Comp.
Given: [Products (ID:DataObjectReference_2)]1
Received: [Products (ID:DataObjectRefeference_GEN7)]1
Intersection: [Products (ID:DataObject_2)]1
**************************
>From the output you can see that the rule should have been fired with the
two "exists" constrains as both conditions are met, but it doesn't.
I am kind of new to Drools so I may be doing an horrible mistake but google
haven't been my friend so far. Any help will be very appreciated!
Thanks.
Anis
11 years, 6 months
Drools6 - High Availability Environment not Working
by Zahid Ahmed
Hi,
I am deploying Drools6 in our organization and the requirement is, Drools6 Workbench and rules engine should be in High Available environment. I am following the Drools developer guide for deployment but the assets among two workbench servers are not synching.
Can anyone guide me what could be wrong. I am simply following the steps provided in the guide. Also installed Zookeeper, Helix as per the guide.
Regards,
Zahid Ahmed
11 years, 6 months
Exception when using retract
by Sara Didaci
Hi
i have a problem that seems to me quite similar to this
http://drools.46999.n3.nabble.com/rules-users-Exception-when-using-retrac...
(i cannot reply to this post, don't Know why)
In my case exception is
java.lang.NullPointerException
at
ConditionEvaluator9935e5dba4084774a05641a0448cd694.evaluate(Unknown Source)
at
org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:200)
at
org.drools.rule.constraint.MvelConstraint.isAllowedCachedLeft(MvelConstraint.java:169)
at
org.drools.common.DoubleBetaConstraints.isAllowedCachedLeft(DoubleBetaConstraints.java:88)
at org.drools.reteoo.NotNode.assertLeftTuple(NotNode.java:78)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:232)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:89)
at org.drools.reteoo.JoinNode.propagateFromLeft(JoinNode.java:107)
at org.drools.reteoo.JoinNode.assertLeftTuple(JoinNode.java:95)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:232)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:116)
at
org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:154)
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:847)
at
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:269)
at
it.eximia.meerkat.re.core.RuleEngine.executeSession(RuleEngine.java:212)
at it.eximia.meerkat.re.core.RuleEngine.run(RuleEngine.java:180)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
|#]
[#|2014-06-07T04:05:11.418+0200|WARNING|sun-appserver2.1|RuleEngine|_ThreadID=25;_ThreadName=pool-5-thread-1;_RequestID=b189af67-c681-411d-ad8c-44f1ec1646bf;|errore
nel Rule Engine
Exception executing consequence for rule "temperatura normale" in
it.sure.template: java.lang.NullPointerException
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
at
org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
at
org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
at
it.eximia.meerkat.re.core.RuleEngine.executeSession(RuleEngine.java:215)
at it.eximia.meerkat.re.core.RuleEngine.run(RuleEngine.java:180)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at
org.drools.core.util.index.LeftTupleIndexHashTable.remove(LeftTupleIndexHashTable.java:370)
at org.drools.reteoo.NotNode.retractLeftTuple(NotNode.java:214)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:250)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractRightTuple(CompositeLeftTupleSinkAdapter.java:165)
at org.drools.reteoo.JoinNode.retractRightTuple(JoinNode.java:184)
at
org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:283)
at
org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:354)
at org.drools.common.NamedEntryPoint.retract(NamedEntryPoint.java:568)
at
org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:357)
at
it.sure.template.Rule_temperatura_normale_53fab538df67455491288390ebd5c29c.defaultConsequence(Rule_temperatura_normale_53fab538df67455491288390ebd5c29c.java:49)
at
it.sure.template.Rule_temperatura_normale_53fab538df67455491288390ebd5c29cDefaultConsequenceInvokerGenerated.evaluate(Unknown
Source)
at
it.sure.template.Rule_temperatura_normale_53fab538df67455491288390ebd5c29cDefaultConsequenceInvoker.evaluate(Unknown
Source)
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
... 16 more
|#]
i'm using drools 5.5.0 Final
here is the rule, (i removed some statements don't seems relevant)
rule "temperatura normale"
salience -2
when
$nowTimestamp : ExecutionTimestamp()
$event: ScalarEvent(name == "TEMPERATURE_EVENT", $creation:
creationDateTime, $uuid : sensorUUID ) from entry-point "event"
not(ScalarEvent(name == "TEMPERATURE_EVENT", creationDateTime.time
< $creation.getTime(), sensorUUID == $uuid) from entry-point "event")
$sensor: EnvironmentalSensor(sensorUUID == $event.sensorUUID,
$sensor.type.keyId == "TEMP_ENV_TYPE", $sensor.assessable == true)
$temperature1: Number( floatValue >=
Float.valueOf($sensor.getPropertyValue("min")) ) from $event.measure
$temperature2: Number( floatValue <=
Float.valueOf($sensor.getPropertyValue("max")) ) from $event.measure
$sensorInAlarm: SensorInAlarm (sensorUUID == $uuid)
then
ConcurrentHashMap<String, String> statusInfo =
sensorCache.get($sensor.getId().toString());
SimpleDateFormat formatter = new
SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long sensorId = $sensor.getId();
Date alarmTimestamp = $event.getCreationDateTime();
String measure = $event.getMeasure() + "";
String alarmType = "TEMPERATURE_OK";
statusInfo.put("eventMeasure", measure);
statusInfo.put("eventTimestamp",
formatter.format(alarmTimestamp));
$sensorInAlarm.setEventTimestamp(alarmTimestamp);
$sensorInAlarm.setEventMeasure(measure);
update($sensorInAlarm);
sensorCache.update($sensor.getId().toString(),
statusInfo);
RuleEngineLogger.log(RuleEngineLoggerLevel.INFO,
"normale");
retract($event);
end
The exception does not immediately occur sometimes it takes days
before occurs
Rule is fire when event TEMPERATURE_EVENT occurs. TEMPERATURE_EVENT is a
measure from a thermometer, i have a dispather that simultaneously
sends 10 measures (coming from 10 different sensors), then dispatcher
stops sending data for few minutes then it sends again new 10 measures,
an so on.
Same situation for me: When the exception is thrown, it looks like that
the event is not removed from the knowledge base (I watch the number of
events in the knowledge base -- fact count)
I more than 10 rules, fired every 1s
Any help would be appreciated
Sara
--
Eximia Srl <http://www.eximia.it>
Sara Didaci
Application Engineer
Eximia S.r.l.
Via Sassari, 3
09123 Cagliari - Italy
Tel +39 070 7966776
Fax +39 070 680904
Mob +39 328 4660322
Email sara.didaci(a)eximia.it <mailto:sara.didaci@eximia.it>
Web www.eximia.it <http://www.eximia.it>
Eximia è un'azienda certificata ISO 9001
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11 years, 7 months
